Nodejs Array Flatten flatten()

Method Source Code

Array.prototype.flatten = function() {
    var resultArray = [];

    function getValues(array) {
        var i;//from   ww  w  .  j  a v a  2  s .c  om
        for (i = 0; i < array.length; i += 1) {
            var value = array[i];
            if (Array.isArray(value)) {
                getValues(value);

            } else {
                resultArray.push(value);
            }
        }
    }

    getValues(this);
    return resultArray;
};

var array = [1, 2, 3, 4];
console.log(array.flatten());
var array = [1, 2, [3, 4], [5, 6]];
console.log(array.flatten());
console.log(array); // Not changed
var array = [0, ["string", "values"], 5.5, [[1, 2, true], [3, 4, false]], 10];
console.log(array.flatten());

Related

1. flatten()

   Array.prototype.flatten = function() {
       function getArrayElements(array, result) {
           if(!result) {
               result = [];
           for (var i=0; i<array.length; i++) {
               if(Array.isArray(array[i])) {
                   getArrayElements(array[i], result);
               }else {
   ...
   

2. flatten()

   Array.prototype.flatten = function() {
       return this.inject([], function(array, value) {
         if (DiaFluxUtils.isArray(value))
           return array.concat(value.flatten());
         array.push(value);
         return array;
       });
   

3. flatten()

   Array.prototype.flatten = function(){
     return this.reduce(function(flat, val, i, hilly){
       Array.isArray(val) ? flat.concat(val.flatten()) : flat.concat(val);
     }, []);
   

4. flatten()

   Array.prototype.flatten = function () {
       var result = [];
       function flatten(elements, output) {
           elements.forEach(function (element) {
               if (!(typeof element === 'object' || typeof element === typeof Array)) {
                   output.push(element);
               else {
                   flatten(element, output);
   ...
   

5. flatten()

   Array.prototype.flatten = function() {
       return Array.prototype.concat.apply([], this);
   

6. flatten()

   Array.prototype.flatten = function () {
       var thisArr = this;
       var newArr  = [];
       recursive(thisArr);
       function recursive (arr) {
           for (var i = 0; i < arr.length; i++) {
               if (arr[i] instanceof Array) {
                   recursive(arr[i]);
               } else {
   ...
   

7. flatten()

   "use strict";
   Array.prototype.flatten = function () {
       var result = [];
       function getValues(array) {
           var i;
           for (i = 0; i < array.length; i++) {
               var value = array[i];
               if (Array.isArray(value)) {
                   getValues(value);
   ...
   

8. flatten()

   var array;
   Array.prototype.flatten = function () {
       'use strict';
       var resultArray = [];
       function getValues(array) {
           var i,
               value;
           for (i = 0; i < array.length; i += 1) {
               value = array[i];
   ...
   

9. flatten()

   Array.prototype.flatten = function() {
       var resultArray = [];
       function getValues(array) {
           var i;
           for (i = 0; i < array.length; i += 1) {
               var value = array[i];
               if (Array.isArray(value)) {
                   getValues(value);
               } else {
   ...